diff --git a/_gtfobins/lualatex.md b/_gtfobins/lualatex.md
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+description: `lualatex` is a symbolic link to [`luatex`](/gtfobins/luatex/). However the program does not have the same behaviour regarding the name of argv[0]. It allows to call external command with \write18 but it also allows to call external [`lua`](/gtfobins/lua/) scripts.
+functions:
+  sudo:
+    - code: |
+        echo "\documentclass[12pt]{article} \usepackage{shellesc} \begin{document} \write18{/usr/bin/id} \end{document}" > file.tex
+        sudo lualatex -shell-escape file.tex